I think that my daily dose of calcitonin (for osteoporosis) is making my fibromyalgia worse. Does anyone else have a problem with calcitonin? I take it as a nasal spray. I am in a huge flare at the moment, and wonder if this is because the pharmacist gave me a new brand of the spray the last time I filled my prescription. I am temporarily stopping my daily dose to see if things improve. I can't do anything given my pain right now!